# List of chief ministers of Assam

The chief minister of Assam, an Indian state, is the head of the Government of Assam. As per the Constitution of India, the governor is the state's de jure head, but de facto executive authority rests with the chief minister. Following elections to the Assam Legislative Assembly, the governor usually invites the party (or coalition) with a majority of seats to form the government. The governor appoints the chief minister, whose council of ministers are collectively responsible to the assembly. Given that he has the confidence of the assembly, the chief minister's term is for five years and is subject to no term limits.
Since 1946, Assam has had 17 chief ministers. Ten of these belonged to the Indian National Congress, including Gopinath Bordoloi, the first chief minister of Assam, and Anwara Taimur, India's first female Muslim chief minister. Congress monopoly in the state was brought to an end when Golap Borbora led the Janata party to victory in the 1978 assembly elections. Borbora consequently became the first non congress chief minister of Assam. Prior to that, Borbora was the first member of the non congress opposition to be elected as a Rajya Sabha member from Assam. Congressman Tarun Gogoi is the longest-serving officeholder, having served for 15 years from 2001 to 2016. Sarbananda Sonowal became the Assam's first chief minister from the Bharatiya Janata Party, when he was sworn in on 24 May 2016. On 9 May 2021, Himanta Biswa Sarma is announced as the 15th chief minister of Assam.
* Top left: Gopinath Bordoloi was the first chief minister of Assam.
* Top center: Anwara Taimur was the first and only woman to serve as chief Minister.
* Top right: Golap Borbora was the first non-Congress chief minister.
* Bottom left: Prafulla Kumar Mahanta was the first non-Congress chief minister to complete a full 5 year term and the only non-Congress chief minister to date to have served on two occasions.
* Bottom center: Tarun Gogoi was the longest serving chief minister for 15 years.
* Bottom right: Himanta Biswa Sarma is the current chief minister.

## List of chief ministers of Assam
### Prime ministers (1919-50)

Under the Government of India Act 1935, a bicameral legislature was set up with a legislative assembly and a legislative council. The premier of Assam was the head of the government and leader of the legislative assembly of Assam Province.
| # | Portrait | Name | Term of office | Term of office | Party (coalition) |
| 1 | | Ghanashyam Baruah | 1919 | 1923 | |
| 2 | | Pramod Chandra Dutta | 1923 | 1926 | |
| 3 | | Maulavi Saiyid Muhammad Saadulla | 1926 | 1929 | |
| 4 | | Maulavi Abdul Hamid | 1929 | 1937 | |
| 5 | | Muhammed Saadulah | 1 April 1937 | 19 September 1938 | Assam Valley Party (INC) |
| 6 | | Gopinath Bordoloi | 19 September 1938 | 17 November 1939 | Indian National Congress |
| (5) | | Muhammed Saadulah | 17 November 1939 | 24 December 1941 | Assam Valley Party (AIML) |
| - | - | Vacant (Governor's Rule) | 25 December 1941 | 24 August 1942 | N/A |
| (5) | | Muhammed Saadulah | 25 August 1942 | 11 February 1946 | Assam Valley Party (AIML) |
| (6) | | Gopinath Bordoloi | 11 February 1946 | 25 January 1950 | Indian National Congress |

### Chief ministers

| # | Name | Constituency | Term of office | Term of office | Term of office | Assembly | Party |
| 1 | Gopinath Bordoloi | Kamrup Sadar (South) | 26 January 1950 | 5 August 1950 | 191 days | 2nd Provincial (1946 election) | Indian National Congress |
| 2 | Bishnuram Medhi | Hajo | 9 August 1950 | 28 December 1957 | 7 years, 141 days | 2nd Provincial (1946 election) | Indian National Congress |
| 2 | Bishnuram Medhi | Hajo | 9 August 1950 | 28 December 1957 | 7 years, 141 days | 1st (1952 election) | Indian National Congress |
| 2 | Bishnuram Medhi | Hajo | 9 August 1950 | 28 December 1957 | 7 years, 141 days | 2nd (1957 election) | Indian National Congress |
| 3 | Bimala Prasad Chaliha | Badarpur | 28 December 1957 | 11 November 1970 | 12 years, 318 days | 2nd (1957 election) | Indian National Congress |
| 3 | Bimala Prasad Chaliha | Sonari | 28 December 1957 | 11 November 1970 | 12 years, 318 days | 3rd (1962 election) | Indian National Congress |
| 3 | Bimala Prasad Chaliha | Sonari | 28 December 1957 | 11 November 1970 | 12 years, 318 days | 4th (1967 election) | Indian National Congress |
| 4 | Mahendra Mohan Choudhry | Guwahati East | 11 November 1970 | 31 January 1972 | 1 year, 81 days | 4th (1967 election) | Indian National Congress |

## List of chief ministers of Assam

| # | Name | Constituency | Term of office | Term of office | Term of office | Assembly | Party |
| 5 | Sarat Chandra Sinha | Bilasipara East | 31 January 1972 | 12 March 1978 | 6 years, 40 days | 5th (1972 election) | |
| 6 | Golap Borbora | Tinsukia | 12 March 1978 | 9 September 1979 | 1 year, 181 days | 6th (1978 election) | Janata Party |
| 7 | Jogendra Nath Hazarika | Duliajan | 9 September 1979 | 11 December 1979 | 93 days | 6th (1978 election) | Janata Party |
| – | Vacant (President's rule) | N/A | 12 December 1979 | 5 December 1980 | 359 days | 6th (1978 election) | N/A |
| 8 | Anwara Taimur | Dalgaon | 6 December 1980 | 30 June 1981 | 206 days | 6th (1978 election) | Indian National Congress |
| – | Vacant (President's rule) | N/A | 30 June 1981 | 13 January 1982 | 197 days | 6th (1978 election) | N/A |
| 9 | Kesab Chandra Gogoi | Dibrugarh | 13 January 1982 | 19 March 1982 | 65 days | 6th (1978 election) | Indian National Congress |
| – | Vacant (President's rule) | N/A | 19 March 1982 | 27 February 1983 | 345 days | Dissolved | N/A |
| 10 | Hiteswar Saikia | Nazira | 27 February 1983 | 24 December 1985 | 2 years, 300 days | 7th (1983 election) | Indian National Congress |
| 11 | Prafulla Kumar Mahanta | Nowgong | 24 December 1985 | 28 November 1990 | 4 years, 339 days | 8th (1985 election) | Asom Gana Parishad |
| – | Vacant (President's rule) | N/A | 28 November 1990 | 30 June 1991 | 214 days | Dissolved | N/A |
| (10) | Hiteswar Saikia | Nazira | 30 June 1991 | 22 April 1996 | 4 years, 297 days | 9th (1991 election) | Indian National Congress |
| 12 | Bhumidhar Barman | Barkhetry | 22 April 1996 | 15 May 1996 | 23 days | 9th (1991 election) | Indian National Congress |
| (11) | Prafulla Kumar Mahanta | Barhampur | 15 May 1996 | 18 May 2001 | 5 years, 3 days | 10th (1996 election) | Asom Gana Parishad |
| 13 | Tarun Gogoi | Titabar | 18 May 2001 | 24 May 2016 | 15 years, 6 days | 11th (2001 election) | Indian National Congress |
| 13 | Tarun Gogoi | Titabar | 18 May 2001 | 24 May 2016 | 15 years, 6 days | 12th (2006 election) | Indian National Congress |
| 13 | Tarun Gogoi | Titabar | 18 May 2001 | 24 May 2016 | 15 years, 6 days | 13th (2011 election) | Indian National Congress |
| 14 | Sarbananda Sonowal | Majuli | 24 May 2016 | 10 May 2021 | 4 years, 351 days | 14th (2016 election) | Bharatiya Janata Party |
| 15 | Himanta Biswa Sarma | Jalukbari | 10 May 2021 | Incumbent | 3 years, 311 days | 15th (2021 election) | Bharatiya Janata Party |

## Statistics
### List by chief minister

| # | Chief Minister | Party | Party | Term of office | Term of office |
| # | Chief Minister | Party | Party | Longest continuous term | Total duration of chief ministership |
| 1 | Tarun Gogoi | | INC | 15 years, 6 days | 15 years, 6 days |
| 2 | Bimala Prasad Chaliha | | INC | 12 years, 318 days | 12 years, 318 days |
| 3 | Prafulla Kumar Mahanta | | AGP | 5 years, 3 days | 9 years, 342 days |
| 4 | Hiteswar Saikia | | INC | 4 years, 297 days | 7 years, 232 days |
| 5 | Bishnuram Medhi | | INC | 7 years, 141 days | 7 years, 141 days |
| 6 | Sarat Chandra Sinha | | INC | 6 years, 40 days | 6 years, 40 days |
| 7 | Sarbananda Sonowal | | BJP | 4 years, 351 days | 4 years, 351 days |
| 8 | Himanta Biswa Sarma* | | BJP* | 3 years, 311 days* | 3 years, 311 days* |
| 9 | Golap Borbora | | JP | 1 year, 181 days | 1 year, 181 days |
| 10 | Mahendra Mohan Choudhry | | INC | 1 year, 81 days | 1 year, 81 days |
| 11 | Anwara Taimur | | INC | 0 year, 206 days | 0 year, 206 days |
| 12 | Gopinath Bordoloi | | INC | 0 year, 192 days | 0 year, 192 days |
| 13 | Kesab Chandra Gogoi | | INC | 0 year, 65 days | 0 year, 65 days |
| 14 | Jogendra Nath Hazarika | | JP | 0 year, 93 days | 0 year, 93 days |
| 15 | Bhumidhar Barman | | INC | 0 year, 23 days | 0 year, 23 days |

## Timeline

* Bharatiya Janata Party (11.25%)
* Indian National Congress (69.03%)
* Asom Gana Parishad (13.29%)
* Janata Party (2.34%)
* President's Rule (4.09%)